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CVE PROGRAM SOURCE RECORDUnscored

CVE-2020-1899

The unserialize() function supported a type code, "S", which was meant to be supported only for APC serialization. This type code allowed arbitrary memory addresses to be accessed

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Status
Published
Published
Updated
Assigning organization
facebook

Description

The unserialize() function supported a type code, "S", which was meant to be supported only for APC serialization. This type code allowed arbitrary memory addresses to be accessed as if they were static StringData objects. This issue affected HHVM prior to v4.32.3, between versions 4.33.0 and 4.56.0, 4.57.0, 4.58.0, 4.58.1, 4.59.0, 4.60.0, 4.61.0, 4.62.0.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Facebook HHVM

  • 4.62.1 to < unspecifiedunaffected
  • 4.62.0affected
  • 4.61.1 to < unspecifiedunaffected
  • 4.61.0affected
  • 4.60.1 to < unspecifiedunaffected
  • 4.60.0affected
  • 4.59.1 to < unspecifiedunaffected
  • 4.59.0affected
  • 4.58.2 to < unspecifiedunaffected
  • 4.58.0 to < unspecifiedaffected
  • 4.57.1 to < unspecifiedunaffected
  • 4.57.0affected
  • 4.56.1 to < unspecifiedunaffected
  • 4.33.0 to < unspecifiedaffected
  • 4.32.3 to < unspecifiedunaffected
  • unspecified to < 4.32.3affected

References